Western Siberia-4 (Cretaceous of Russian Federation)

Where: Russian Federation (62.5° N, 70.0° E: paleocoordinates 59.0° N, 65.2° E)

• local area-level geographic resolution

When: Temnoptychites insolutus zone, Valanginian (139.8 - 132.9 Ma)

Environment/lithology: marine; siliciclastic sediments

Size class: macrofossils

Primary reference: V. N. Saks, ed. 1975. The Jurassic-Cretaceous Boundary and the Berriasian Stage in the Boreal Realm. 1-319 [M. Patzkowsky/K. Layou/P. Wagner]more details

Purpose of describing collection: biostratigraphic analysis

PaleoDB collection 2509: authorized by Mark Patzkowsky, entered by Karen Layou on 07.07.1999

Creative Commons license: CC BY (attribution)

Taxonomic list

Nodosariata
 Robertinida - Ceratobuliminidae
Foraminifera
 Lituolida - Haplophragmoididae
Bivalvia
 Pectinida - Oxytomidae
cf. Oxytoma articostata scallop
originally entered as "Oxytoma cf. articostata"
 Pectinida - Buchiidae
ex gr. Buchia crassicollis Keyserling 1846 scallop
originally entered as "Buchia ex gr. crassicollis"
cf. Buchia terebratuloides Lahusen 1888 scallop
originally entered as "Buchia cf. terebratuloides"
 Pectinida - Entoliidae
"cf. Entolium demissum" = Entolium demissus
"cf. Entolium demissum" = Entolium demissus Phillips 1835 scallop
originally entered as "Entolium cf. demissum"
 Carditida - Astartidae
cf. Astarte veneriformis clam
originally entered as "Astarte cf. veneriformis"
Cephalopoda
 Ammonitida - Polyptychitidae
"cf. Neotollia densa" = Tollia, "Neotollia sp." = Tollia, "Temnoptychites insolutus" = Nikitinoceras, "Temnoptychites sp." = Nikitinoceras
"cf. Neotollia densa" = Tollia ammonite
originally entered as "Neotollia cf. densa"
"Neotollia sp." = Tollia Pavlow 1914 ammonite
"Temnoptychites insolutus" = Nikitinoceras ammonite
"Temnoptychites sp." = Nikitinoceras Sokolov 1913 ammonite